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Another Meteor Flashes Across Bay Area Skies

SAN FRANCISCO (CBS SF) -- On the heels of a close fly-by of an asteroid 17,000 miles from Earth on Friday morning and a devastating meteor that landed in Russia, Bay Area stargazers caught a glimpse of another meteor Friday night.

Social media users reported seeing the blue flash of the meteor flying west around 8 p.m. Friday night, and sightings were reported throughout the Bay Area, from Santa Clara to Fairfield, and even in the Central Valley cities of Fresno and Stockton.

Jonathan Braidman, an astronomer with the Chabot Space and Science Center in Oakland, said that it appears that the three astronomical events seen Friday are unrelated.


Friday's destructive meteor fall in Russia—reported to have injured 1,000 people, the asteroid flying closer to Earth than the orbit of the moon, and the meteor spotted in the Bay Area seem to be moving in different trajectories from the evidence he's seen, indicating they are from different points of origin, Braidman said.

Based on reports, he said that it seems Friday night's fireball was what astronomers call a "sporadic meteor," an event that can happen several times a day but most of the time happens over the ocean, away from human eyes, and brings as much as 15,000 tons of space debris to Earth each year.

Meteors, hunks of rock and metal from space that fall to Earth, burn up as they go through Earth's atmosphere, which is what apparently caused Friday night's bright flash of light, Braidman said.

It was likely smaller than another meteor that landed in the Bay Area in October, which caused a loud sonic boom as it fell, breaking apart and spreading rocks, called meteorites, in the North Bay.

He said that while Chabot was packed for its weekend stargazing sessions—held every Friday and Saturday night, weather permitting, where visitors come to get a look at the sky through Chabot's powerful telescopes—the angle wasn't right for people to see Friday night's meteor.

But they continued tracking the asteroid's fly-by, which because of its relatively small size looks like a "fuzzy dot" even through the telescopes. Stargazers there also were also enjoying views of Jupiter and the moon, he said.

But telescopes aren't the best way to see meteors anyway, Braidman said, because of their high speed and brief appearances. The naked human eye is the best way to catch a look at a meteor.

He said that some Chabot viewers saw another streak Friday night, likely a much smaller particle than the more widely-seen meteor.

Meteors even come in showers sometimes when the Earth passes through the tail of a comet. The most visible in the Bay Area is the Perseid meteor shower in August, he said.

"Any time you get out to a dark sky take a look up and you might get to see something like that if you get lucky," Braidman said.

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(Copyright 2013 by CBS San Francisco and Bay City News Service. All rights reserved. This material may not be published, broadcast, rewritten or redistributed.)

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